package com.le.tester.javaThink.fourth.concurrency;

import java.io.IOException;

/**
 * createTime：2021/9/14 16:10
 * description：控制台响应界面
 */

class UnresponsiveUI {
    private volatile double d = 1;

    public UnresponsiveUI() throws IOException {
        while (d > 0)
            d = d + (Math.PI + Math.E) / d;
        System.in.read();
    }
}

public class ResponsiveUI extends Thread {
    private static volatile double d = 1;

    public ResponsiveUI() {
        setDaemon(true);
        start();
    }

    public void run() {
        while (true) {
            d = d + (Math.PI + Math.E) / d;
        }
    }

    public static void main(String[] args) throws IOException {
        new ResponsiveUI();
        System.in.read();
        System.out.println(d);
    }

}
